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- W4386971161 abstract "Abstract In this work, we numerically simulate the hydrodynamic performance of an undulating foil at different lateral distances behind a cylinder, focusing on the evolution of the vortex street at each stage. Computations are conducted using unsteady incompressible Navier-Stokes solver with a moving adaptive mesh for laminar flow. We found that the secondary vortex induced by the Karman vortex street at the leading edge of the foil is the main reason for the thrust increase of the foil. The evolution of vortices corresponding to different lateral distances are different. A small lateral distance between the cylinder and the foil could make the vortex evolution complex. Meanwhile, the secondary vortex could be generated easily, and the foil could gain a large thrust. As the distance increases, the lift force of the foil tends to increase first and then decrease. An optimal distance exists at which lift reaches its maximum value, and this is also related to the distribution and strength of the vortex." @default.
- W4386971161 created "2023-09-23" @default.
- W4386971161 creator A5032426641 @default.
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- W4386971161 date "2023-06-11" @default.
- W4386971161 modified "2023-09-29" @default.
- W4386971161 title "Numerical Study on the Evolution of Vortices Influenced by Downstream Undulating Foil With Different Lateral Distances" @default.
- W4386971161 doi "https://doi.org/10.1115/omae2023-102766" @default.
- W4386971161 hasPublicationYear "2023" @default.
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